In the middle of one of Utah’s winter inversions earlier this year, Brent Muhlestein, MD, was the doctor on call to help heart attack patients arriving at the emergency department of Intermountain Medical Center. Learn why that day was busier that usual and what you can do to protect your heart from bad air.

Cholesterol is important to the body; it’s used for producing cell membranes and hormones to helping the body digest fat. However, knowing the difference between good cholesterol and bad cholesterol, and knowing your cholesterol levels, can help you stay healthy.